hey guys...so recently when i play (mostly its with string crossing or triplets (galloping)) my right hand muscles gets very weakened...i dont know how to explain this , its like it fall off and faint ...i cant play a fast rhythm lick for more than 10 sec without my muscles getting really tired , that happens especially with downpicking and playing Bleed by meshuggah (galloping).....please guys any help ?

You are probably using wayyy to much tension and death-gripping your pick. Next time it happens, stop and see if you're also feeling tension in your forearm, shoulder, or neck. You'd be surprised how far tension can spread and essentially immobilize your whole arm.

If you have pain, tingling, numbness you need to stop playing immediately and assume that you are doing something very wrong technique-wise. You can cause severe, permanent damage by playing through an injury.

1.4 years...guys its not pain or a medical problem , its just tension btween my Joint and Hand (back of the arm) ..am not sure if thats the specific point of tension , how can i fix that ( and how hard should i grip the pick) ?

As cdgraves told you you are deathgripping your pick and that causes tension everywhere.When you hold your pick it must have a tiny slack between your fingers so you must hold it as hard as it doesnt fall of your hands....nothing more.If you grip it tightly it has the added disadvantage that it bounces of the strings making you apply even more force.

Second..pick from your wrist.Some use their elbow even their shoulder but if you want to be relaxed and efficient the wrist is the best way without sacrificing power.Go in front of a mirror for added feedback cause you may think you do it from the wrist but most of the times the elbow or the shoulder comes in to play.

Third just as cdgraves told you stop and ask yourself..am i truly relaxed here? cause everytime a challenging part enters 99.9 percent of the time you tense up.So instead of contemplating how to...use brute force and play it faster for example just try to play it more relaxed.Using halpf the force you are using.If you practise this way you ll start to get aware of the tension and the fact that you need so little power to chug to...infinity that your practise and playing ll become enjoayable and effortless .

1.4 years...guys its not pain or a medical problem , its just tension btween my Joint and Hand (back of the arm) ..am not sure if thats the specific point of tension , how can i fix that ( and how hard should i grip the pick) ?

Don't sweat it dude, you haven't been playing too long. Make sure you stretch your hands before you play and remember you always wanna be relaxed. Personally, I pick with my thumb and first finger mostly with a very light wrist motion when going faster.

Regarding how hard you hold the pick, think of it like holding a spoon or fork when you eat. Not too hard, not too soft.

The most likely cause is tension. Start very, very slowly - like, 1 note per second or less. Make small, neat movements with the wrist.

If your arm is tense it cuts off circulation to the muscles that move the wrist, most likely you're gripping the pick too hard and tensing up way too much in general. That said, prolly worth seeing a doctor.

starting at 60 bpm, play the open strings (muted at the nut) one at a time on quarter notes, 8ths, triplets, and 16ths. Play quarters on each string, then 8ths on each string, etc.

If that works for you at 60bpm, bump it up 3-5. If you struggled with 60 or had to repeat many times, take it down to 54bpm.

Then do rhythm ladders on each string. Starting on the low E, play 2-4 bars of quarter notes, then 8ths, triplets, and 16ths. Move on to the A string etc.

things to keep in mind when practicing:

1) Keep your right hand floating as much as possible. It's OK for your fingers or butt of your hand to touch the strings/bridge, but DO NOT anchor and DO NOT palm mute! Do palm mute picking as a separate exercise.

2) Make sure your pick motion comes from the wrist alone, not the thumb or elbow.

3) Mind your tension by using your idle left hand to feel your shoulder while you're playing. In particular, the muscle on the rear outside of your shoulder is susceptible to tension when playing.